Do Crest Whitestrips give you any long-term side-effects?!
Question: i hear they make your teeth more sensitive?
Answers: i hear they make your teeth more sensitive?
They made my teeth far more sensitive. I used them once and they worked well but, now every time I try to use them they hurt like h-ll.
Also my teeth are very very sensitive to cold now.
I've used them for a year in a half now and i've had no side effects